Very cold in the hangar tonight. It's been cold every night this month. Thats why the hours are real short for each work session. Gets counterproductive after an hour or so.
Set up the horizontal stabilizer to check fit and find hardware. Clamped it to the rear bars, set the spacers, added the drill bit to the rear spar and checked straightness. Measued to within a 1/16 inch from the firewall to the end of the HS. Dang close!